JP5930644B2 - Exterior material connection structure - Google Patents

Description

  The present invention relates to an exterior material for building an exterior of a building or a structure, and more particularly to a connection structure of exterior materials with improved wind pressure resistance.

  In general, wall materials for vertical construction are marketed that are processed by roll forming metal plate materials and have excellent water leakage resistance and strength after construction, especially strength against the force acting on the outer surface due to wind etc. . (For example, refer to Patent Documents 1 and 2).

JP-A-6-240839 JP-A-6-307056 Japanese Patent Laid-Open No. 11-172892

  Patent Documents 1 and 2 both provide an exterior wall material for vertical stretching that is excellent in water leakage resistance and strength after construction, and the engagement piece is locked to the groove-shaped recess in the engagement piece receiver. Is. However, since the outer wall material after the construction cannot be removed after the construction, the construction is not allowed to be mistaken, and there is a big problem in the workability. Reference 3 is a horizontal siding board in which a core material is formed between a metal surface material and a back surface material. This type of siding board is lightweight, has good workability, and is widely used. The part was weak in strength and had a weak point in wind pressure resistance.

In order to solve such drawbacks, the present invention provides a long exterior material having a male-female connection structure at the upper and lower ends of the decorative surface, wherein the male connection portion has the lower end of the vertical decorative surface facing the indoor side. A lower wall that is bent upward, a lower edge that protrudes upward from the tip of the lower wall, a cover piece that consists of a decorative surface, a lower wall, and a lower edge, and an innermost piece that is bent indoors at the tip of the lower edge, An engagement piece that hangs down the tip of the innermost piece downward, an engagement groove composed of the lower edge, the innermost piece, and the engagement piece, a step piece that protrudes the tip of the engagement piece indoors, and a step piece The upper end of the decorative face protrudes indoors from the insertion piece with the tip of the insert hanging downward and the drop-off prevention piece that protrudes with the tip of the insertion piece inclined upward on the outdoor side. A side wall, a joint that protrudes upward from the tip of the upper sidewall, an inclined surface that projects the tip of the joint to the indoor side and is inclined downward, and the joint And a fitting surface formed from a slanted surface, a dropout prevention groove in which a part of the sloped surface is recessed to the outside, a support surface formed by the dropout prevention groove, and a fixing in which the tip of the sloped surface protrudes upward And a mating groove formed from an inclined surface and a fixed surface, the mating surface of the female coupling portion is in the mating groove of the male coupling portion, and the insertion piece of the male coupling portion is female. The present invention relates to a connection structure of exterior materials inserted into fitting grooves of a connection portion .

  According to the connecting structure of exterior materials according to the present invention, (1) when a negative wind load (force to pull the wall) is received from the indoor side in the wind pressure resistance performance test of the wall body, the drop-off prevention piece is inclined. By being caught in the drop-off preventing groove formed on the inclined surface, the connection between the exterior materials A is not released, and the wind pressure resistance is improved. (2) The sloping inclined surface formed in the female connecting portion can ensure that the drop-off prevention piece is caught in the drop-off prevention groove. (3) Since the lower end of the inclined surface is inclined to the indoor side and the upper end is inclined to the outdoor side, the drop-off prevention piece is reliably caught in the drop-off prevention groove formed in the middle. (4) Even after negative pressure is applied from the indoor side, when the deformation of the exterior material tries to return, the inclined surface follows the deformation that tries to return to the shape after the deformation of the exterior material. The exterior material can be restored to the state. (5) By forming the inclined piece, the shape of the fitting groove is wide and the tapered shape is formed toward the back, so the tip of the insertion piece is securely fixed at the innermost part of the fitting groove after construction. In addition, the insertion piece can be surely inserted into the fitting groove, and even if a drop-off preventing piece is formed at the tip of the insertion piece, it can be removed after construction, and there is no problem in workability. (6) The wind pressure resistance can be improved without being affected by the structure of the exterior material (thickness, working width, steel plate thickness, resin density, adhesive strength, mating depth) that affects the wind pressure resistance. There are features and effects.

It is sectional drawing which shows the construction state of the connection structure of the exterior material which concerns on this invention. It is sectional drawing which shows the representative example of the exterior material used for the connection structure of the exterior material which concerns on this invention. It is a partial expanded sectional view which shows the typical example of the exterior material used for the connection structure of the exterior material which concerns on this invention. It is sectional drawing which shows the construction order of the connection structure of the exterior material which concerns on this invention. It is sectional drawing which shows the construction order of the connection structure of the exterior material which concerns on this invention. It is sectional drawing which shows the construction state of the connection structure of the exterior material which concerns on this invention. It is sectional drawing which shows the construction state of the connection structure of the exterior material which concerns on this invention. It is sectional drawing which shows the construction state of the connection structure of the exterior material which concerns on this invention. It is sectional drawing which shows the other Example of the exterior material used for the connection structure of the exterior material which concerns on this invention.

  Hereinafter, an embodiment of a connecting structure for exterior materials according to the present invention will be described in detail with reference to the drawings. That is, FIG. 1 is a cross-sectional view showing a construction state of the connecting structure of the exterior material according to the present invention, and the exterior material A includes the surface material 1 and the back surface as shown in FIGS. 2, 3A, and 3B. This is an exterior material A in which a core material 3 made of, for example, a synthetic resin foam is sandwiched with the material 2. In addition, P is a packing formed in a continuous shape to enhance waterproofness.

  As an example of the overall shape of the exterior material A, as shown in FIGS. 1, 2, 3 (a) and 3 (b), a core material between a front surface material 1 and a back surface material 2 made of a long metal thin plate is used. 3 is formed from a male connecting portion 4 formed at the lower end in the width direction and a female connecting portion 5 formed at the upper end, and a lower side wall 6 at the lower end of the decorative surface 6 and an upper side wall 7 at the upper end. Formed.

  More specifically, the male connector 4 includes a lower side wall 6 in which the lower end of the vertical surface-shaped decorative surface a is bent indoors, a lower edge 8 that protrudes upward from the tip of the lower side wall 6, and a decorative surface a and a lower side. A cover piece 8a comprising a side wall 6 and a lower edge 8, an innermost piece 9 with the tip of the lower edge 8 bent inward, an engagement piece 10 with the tip of the innermost piece 9 hanging downward, and a lower edge 8, an innermost groove 9, and an engagement piece 10, a step piece 12 that projects the tip of the engagement piece 10 to the indoor side, and an insertion piece 13 that hangs the tip of the step piece 12 downward. And a drop-off prevention piece 14 that protrudes with the tip of the insertion piece 13 inclined upward on the outdoor side. Reference numeral 15 denotes a space.

  The female connecting portion 5 has an upper wall 7 projecting the upper end of the decorative surface a toward the indoor side, a joint ground 16 projecting the tip of the upper wall 7 upward, a tip of the joint ground 16 being bent toward the indoor side and a lower part. , A fitting surface 18 formed from the joint surface 16 and the inclined surface 17, a drop-off prevention groove 19 in which a part of the inclined surface 17 is recessed to the outdoor side, and a drop-off prevention groove 19, a support surface 20 formed by 19, a fixed surface 21 projecting upward from the tip of the inclined surface 17, a fitting groove 22 formed by the inclined surface 17 and the fixed surface 21, and a tip of the fixed surface 21 turned up. It is formed from the tongue surface 22.

In FIG. 1, α is a housing, β is a fixture, and γ is a connecting portion.

  The surface material 1 and the back material 2 are thin metal plates such as iron, aluminum, copper, stainless steel, titanium, aluminum / zinc alloy plated steel plate, galvalume steel plate, enamel steel plate, clad steel plate, laminated steel plate (vinyl chloride steel plate, etc.), sandwich steel plate (control) Corrugated steel sheets, etc.), vinyl chloride resin, polycarbonate resin, etc. (including color plates coated with various colors, of course) formed into various shapes by roll molding, press molding, extrusion molding, etc., or inorganic materials Are formed into various arbitrary shapes by extrusion molding, press molding, autoclave nurturing and the like. Also, as the back material 2, aluminum vapor-deposited paper, kraft paper, asphalt felt, metal foil (Al, Fe, Pb, Cu), synthetic resin sheet, rubber sheet, cloth sheet, gypsum paper, aluminum hydroxide paper, glass fiber nonwoven fabric Or a laminate of two or more kinds, or a sheet-like material that has been waterproofed or flame-retardant treated.

  The core material 3 is made of a synthetic resin foam such as polyurethane foam, polyisocyanurate foam, phenol foam, vinyl chloride foam, polyethylene foam, polystyrene foam, urea foam, etc., and particularly when fire resistance is required. Is formed by mixing a stock solution of a resol type phenol, a curing agent, and a foaming agent, discharging the mixture onto the back surface side of the surface material 1 or the back material 2, and heating to react, foam and cure. In addition, the core material 3 includes lightweight aggregates (perlite grains, glass beads, gypsum slag, talc stone, shirasu balloon, aluminum hydroxide, etc.), fibrous materials (glass wool, rock wool, carbon fiber, Graphite and the like) can be mixed to improve fire resistance and fire resistance. Of course, an inorganic material such as rock wool, glass wool or ceramic wool may be used as the core material 3.

  The exterior materials A are connected as shown in FIG. 1 by inserting a fitting surface 18 into the engagement groove 10 as shown in FIGS. 4 and 5.

  As shown in FIG. 1, the engaging groove 11 inserts the fitting surface 18 of the female connecting portion 5 to connect the exterior material A and prevent the connecting portion γ from rattling.

  The insertion piece 13 and the drop-off prevention piece 14 are inserted into the fitting groove 22, the drop-off prevention piece 14 part is formed so as to contact the innermost part of the fitting groove 22 and the inclined surface 17, and the connecting part γ part is loose. It is fixed without sticking.

  The inclined surface 17 is formed so as to be inclined toward the indoor side as shown in FIG. 3 (b). As shown in FIGS. 6 to 8, the negative pressure is increased from the indoor side in the wind pressure resistance performance test of the wall body. Is added so that the drop-off prevention piece 14 moves along the inclined surface 17 formed to be inclined, and the tip of the drop-off prevention piece 14 is reliably caught in the drop-off prevention groove 19. This prevents the exterior material A from peeling off.

  Further, since the inclined surface 17 is formed with the lower end inclined indoors and the upper end inclined outdoor as shown in the figure, the drop-off prevention piece 14 is reliably caught in the drop-off prevention groove 19 formed in the middle. In addition, even after the negative pressure is applied from the indoor side, when the deformation of the exterior material A tries to return to the original state, the inclined surface 17 follows the deformation to return to the shape after the deformation of the exterior material A, The exterior material A can be restored to the original state as shown in FIG.

  Moreover, since the shape of the fitting groove 22 has a wide opening and becomes tapered toward the back by forming the inclined piece 17, the tip of the insertion piece 13 is surely inserted into the innermost part of the fitting groove 22 after construction. The insertion piece 13 is surely inserted into the fitting groove 22, and even if a drop-off prevention piece 14 is formed at the tip of the insertion piece 13, it can be removed after construction. There is no problem at all.

  Thus, even if the drop-off prevention piece 14 is formed at the distal end of the insertion piece 13, the exterior material A that does not hinder the construction and can reliably prevent the drop-off even when negative pressure is applied from the indoor side. It will be.

  Further, as shown in FIGS. 3A and 3B, when the opening width of the fitting groove 22 is W and the height of the drop-off preventing piece 14 is W1, the relationship is W> W1.

  Therefore, the construction sequence of the exterior material A will be described with reference to FIGS. First, as shown in FIG. 4, the fixing surface 21 of the lower packaging material A1 is driven and fixed by the fixture β, and the insertion piece 13 of the packaging material A is placed on the upper packaging as shown in FIGS. It is formed by inserting the fitting groove 22 of the exterior material A.

  Thereafter, as shown in FIGS. 5 and 6, the upper packaging material A is pulled upward and the engaging piece 8 is inserted into the fitting groove 19.

  In the wall formed by the connecting structure of the exterior material according to the present invention formed in this way, as shown in FIG. 6, when negative pressure is applied from the indoor side in the wind pressure resistance performance test of the wall, Since the drop-off prevention piece 14 is caught in the drop-off prevention groove 19, the exterior material A can be prevented from peeling off.

  What has been described above is only one example of the connection structure of the exterior material according to the present invention, and the exterior material A as shown in FIGS. 9A to 9C can also be used.

A exterior material a decorative surface P packing α housing β fixing fixture γ connecting portion 1 surface material 1a decorative surface back surface 2 back surface material 3 core material 4 male connecting portion 5 female connecting portion 6 lower side wall 7 upper side wall 8 lower edge 8a cover Piece 9 innermost piece 10 engagement piece 11 engagement groove 12 step piece 13 insertion piece 14 drop-off prevention piece 15 space 16 joint surface 17 inclined surface 18 fitting surface 19 drop-off prevention groove 20 support surface 21 fixing surface 22 fitting groove 23 Tongue

Claims (1)

In a long exterior material having a male-female connecting structure at the upper and lower ends of the decorative surface, the male connecting portion has a lower side wall in which the lower end of the vertical surface-shaped decorative surface is bent to the indoor side, and an upper end of the lower side wall. A cover piece composed of a lower edge projecting to the face, a decorative surface, a lower side wall and a lower edge; an innermost piece with the tip of the lower edge bent to the indoor side; and an engagement piece with the tip of the innermost piece suspended downward An engagement groove comprising a lower edge, a backmost piece, and an engagement piece, a step piece projecting the tip of the engagement piece indoors, an insert piece with the tip of the step piece hanging downward, and an insert piece The female-type connecting part has an upper wall that projects the upper end of the decorative surface to the indoor side, and an eye that projects the tip of the upper side wall upward. A ground surface, a sloping surface that bends the tip of the joint ground to the indoor side and protrudes downward, a fitting surface formed from the ground surface and the sloping surface, and a sloping surface A falling-off preventing groove recessed into an outdoor side part, and a support surface formed by the falling preventing groove, a fixing surface which protrudes the tip of the inclined face upwards, formed from an inclined surface and the fixing surface groove And a mating surface of the female coupling part in the engagement groove of the male coupling part, and an insertion piece of the male coupling part is inserted into the fitting groove of the female coupling part. Connecting structure of exterior materials to be used.

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